Removable engine-cylinder lining



F. E. MILNER REMOVABLE ENGINE CYLINDER LINING March 25 1924'. 1,488,272

L Filed Feb. 26, 1921 2%66? EM (Zn er,

yatented Mar. 25, 1924.

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FRED IE. MILNER, OF MARKLE, INDIANA.

REMOVABLE ENGINE-CYLINDER Lm'in'e.

Application filed February 26, 1921. Serial No. 447,973.

improvements in engines and particularly to the cylinders thereof.

One object of the invention is to provide an engine cylinder which can be taken apart for the purposeof repairs and adjustments.

Another object is to provide a lining for the cylinder which may be removed and a new one placed therein when the old one wears out or becomes scored from the wearing action of the piston.

Another object is to provide a one piece cylinder lining which is formed with means for effectively preventing any leakage through the joint tions, or between the lining and the proper.

Other objects and advantages will cylinder be apparent from the following description when taken in connection witli the accompanying drawing.

In the drawing:

Figure 1 is a vertical longitudinal sectional view' through a cylinder, of the gas engine type, equipped with the improved lining, the lining being shown in elevation.

Figure 2 is a vertical longitudinal sectional view through the cylinder and lining.

Figure 3 is a horizontal transverse sectional view through the cylinder and lining, on the line 3-3 of'Figure 1.

Referring particularly to the accompanying drawing, 10 represents the lower portion of a gas engine cylinder and 1 1 the upper portion thereof, the said sections being secured together by means of the vertical bolts 12. The cylinder is formed with the bore .13, extending into both sections. At "the lower end of the portion of the bore in the upper section there is formed a surrounding bevelv face 14, and at the upper end of the portion of the bore in the lower section isformed a similar bevel face 15. These two bevel faces,

of the cylinder block sec-- when the cylinder sections are bolted together, form a \/-shaped groove which extends around the wall of the boreof the cylinder.

In the upper section, the wall of the bore is formedwith a bevel shoulder 16, and in the lower end of the bore of the lower section there is formed a similar bevel shoulder 17 Snugly fitted into the bores of the sections of the cylinder is a sleeve 18 which forms the removable and renewable lining of the cylinder. The upper end ofthe lining 18 is beveled outwardly, as shown at 19 to fit snugly against the upper shoulder 16. while the lower end of the lining is outwardly beveled to fit snugly against the lower shoulder 17 These. joints are preferably ground joints so that the fit is perfect, when 'the cylinder sections are bolted together,

thus preventing any leakage past either of the shoulders intothe space between the lining and cylinder bore. Formed around the outer face of the lining 18, adjacent the upper end, is a V-shaped rib 20 which snugly fits into the V-shaped groove formed by the cooperation of the bevel faces Hand 15. The piston 21,,with its rings 22, fit within the bore of the lining sleeve 18.

Thus, when the lining becomes scored or olllflate, from. the side slapping action of t e cylinder rebored, and over-sized pistons placed therein. The upper section of the cylinder is removed, the lining slipped out, and a new lining of the size of the original one, before it had become worn, slipped into the bore of the cylinder, and the piston replaced.

The lining is preferably formed from the same material as that of the remainder of the cylinder because of its molecular con- StI'lICtiOIL The cylinder sections are formed with the usual water jacket spaces 23 and 24, respecfiively. i I

Attention is called to the fact that it is not necessary to remove the pistons for the purpose of removing the lining, or to-remove and replace the piston rings.

What is claimed is:

The combination with an engine cylinder having a beveled shoulder at its u per end and an inwardly directed flange at its lower end, the inner face of which is beveled, of a removable lining therefor comprising a piston, it is not necessary to have the i cylindrical open-ended bqdly huvingits lower true signature, in the presence of two Wit and outwardly beveled wit 1 the said beveled nesses.

ortion resting upon the said flange, and having a V-shaped supporting rib circum- FRED 5 scribing its outer wall adjacent the upper Witnesses:

end of the cylinder. ALBERT FJEARL.

In testimony whereof, I hereby alfix my JOHN T. MILNER. 

